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AVEVA™ Historian

RetrievalOptionsValueDeadband

  • Last UpdatedNov 17, 2021
  • 1 minute read

This read-write property determines the aaHistClientTrend control’s default value deadband for Delta data retrieval. This setting applies to all tags in a trend whose retrieval style is set to Style selected at option level.

Syntax

aaHistClientTrend.RetrievalOptionsValueDeadband = real;

Result = aaHistClientTrend.RetrievalOptionsValueDeadband;

Remarks

The deadband is a percentage of the full scale in Engineering Units. Valid values are 0 (no deadband) to 100. This property is only relevant for Delta retrieval mode. For more information on how this setting works, see Value Deadband (wwValueDeadband).

The default value is 0 (no deadband).

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